Hi,
Sorry about the lack of information in the previous post. Hopefully
what follows will help.
#uname -a
Linux myrouter 2.2.19brfw #5 Thu May 10 21:25:38 CDT 2001 i686 unknown
#ip addr show
1: lo: <LOOPBACK,UP> mtu 3924 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
link/ether 52:54:00:e8:cc:46 brd ff:ff:ff:ff:ff:ff
inet 192.168.10.254/24 brd 192.168.10.255 scope global eth0
3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
link/ether 00:50:bf:7e:c9:48 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.254/24 brd 192.168.0.255 scope global eth1
#ip route show
192.168.0.254 dev eth1 scope link
192.168.10.254 dev eth0 scope link
192.168.0.0/24 dev eth1 proto kernel scope link src 192.168.0.254
192.168.10.0/24 dev eth0 proto kernel scope link src 192.168.10.254
127.0.0.0/8 dev lo scope link
default via 192.168.10.254 dev eth0
#lsmod
Module Size Used by
ext2 40800 2
rtl8139 12348 1
ne2k-pci 4688 1
8390 6340 0 [ne2k-pci]
#ipchains -nvL
Chain input (policy ACCEPT: 83 packets, 7028 bytes):
Chain forward (policy ACCEPT: 8 packets, 480 bytes):
Chain output (policy ACCEPT: 131 packets, 10156 bytes):
#tail /var/log/messages
Dec 2 10:59:21 myrouter kernel: RAMDISK: Uncompressing root archive: done.
Dec 2 10:59:21 myrouter kernel: RAMDISK: Auto Filesystem - minix: 5461i
16384bk 176fdz(176) 1024zs 2147483647ms
Dec 2 10:59:21 myrouter kernel: VFS: Mounted root (minix filesystem).
Dec 2 10:59:21 myrouter kernel: RAMDISK: Extracting root archive: done.
Dec 2 10:59:21 myrouter kernel: ne2k-pci.c: v1.02 for Linux 2.2,
10/19/2000, D. Becker/P. Gortmaker,
http://www.scyld.com/network/ne2k-pci.html
Dec 2 10:59:21 myrouter kernel: ne2k-pci.c: PCI NE2000 clone 'RealTek
RTL-8029' at I/O 0xcc00, IRQ 9.
Dec 2 10:59:21 myrouter kernel: eth0: RealTek RTL-8029 found at 0xcc00, IRQ
9, 52:54:00:E8:CC:46.
Dec 2 10:59:21 myrouter kernel: rtl8139.c:v1.07 5/6/99 Donald Becker
http://cesdis.gsfc.nasa.gov/linux/drivers/rtl8139.html
Dec 2 10:59:21 myrouter kernel: eth1: RealTek RTL8139 Fast Ethernet at
0xc800, IRQ 10, 00:50:bf:7e:c9:48.
Dec 2 10:59:21 myrouter kernel: Freeing unused kernel memory: 48k freed
192.168.0.26 is a windows 95 box
#ping -c 3 192.168.0.26
PING 192.168.0.26 (192.168.0.26): 56 data bytes
64 bytes from 192.168.0.26: icmp_seq=0 ttl=128 time=0.5 ms
64 bytes from 192.168.0.26: icmp_seq=1 ttl=128 time=0.4 ms
64 bytes from 192.168.0.26: icmp_seq=2 ttl=128 time=0.4 ms
--- 192.168.0.26 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.4/0.4/0.5 ms
192.168.10.1 is another lrp box
#ping -c 3 192.168.10.1
PING 192.168.10.1 (192.168.10.1): 56 data bytes
64 bytes from 192.168.10.1: icmp_seq=0 ttl=255 time=2.4 ms
64 bytes from 192.168.10.1: icmp_seq=1 ttl=255 time=2.3 ms
64 bytes from 192.168.10.1: icmp_seq=2 ttl=255 time=2.3 ms
--- 192.168.10.1 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 2.3/2.3/2.4 ms
It would seem that I may have a routing problem but to my eyes the routes
look fine.
Thanks again in advanced
Martin
-----Original Message-----
From: Ray Olszewski [mailto:[EMAIL PROTECTED]]
Sent: 02 December 2002 16:40
To: [EMAIL PROTECTED]
Subject: Re: [leaf-user] Problems connecting to devices on eth0
Please describe the symptoms more exactly. "unable to ping" is too vague to
diagnose; pings fail in many distinct ways, and we need to know which of
them you are seeing. (See the various LEAF FAQs on ping problems for the
details here.)
In addition to the stuff the FAQs ask for, please tell us what OSs the
systems at 10.18.0.26 and (especially) 192.168.0.11 run ... in particular,
do you KNOW (based on an actual test) that the system at 192.168.0.11 will
itself respond to pings?
Also, can each system ping its "local" interface address on the LEAF
router? What about the other address on the LEAF router?
I'm a bit uncertain as to what you mean by "transparent proxy"; the term,
in my limited experience, applies to a (Web, usually) proxy server that the
clients do not need special configuration to use, but I'm doubtful that
this is what you mean. Do you just mean an ordinary (non-NAT'ing) router?
Or does the LEAF router need to do proxy arp on both interfaces? If the
latter, is it possible that you've configured it to proxy arp one network
but not the other?
And just in case we're missing something "obvious", it would be wise to
include ALL the basic information the SR FAQ asks for in your follow-up.
At 08:55 AM 12/2/02 +0000, Wheldon,M wrote:
>Hi Folks,
>
> I'm using the latest version of Oxygen which I'm in the process of
>setting up as a transparent proxy. I have run into a problem with trying to
>connect to devices that are physically on eth0 the external interface.
>
>ASCII Art to follow
>
>
>192.168.0.11 --------eth1| |eth0-------- 10.18.0.26
>
>eth1 = 192.168.0.254
>eth0 = 10.18.0.254
>
>I can ping 10.18.0.26 from 192.168.0.11 fine, but am unable to ping
>192.168.0.11 from 10.18.0.26
>I've removed all the firewall rules
>
>#ipchains -L gives me
>Chain input (policy ACCEPT)
>Chain forward (policy ACCEPT)
>Chain output (policy ACCEPT)
>
>#route gives me
>192.168.0.254 * 255.255.255.255 UH 0 0 0
eth1
>10.18.0.254 * 255.255.255.255 UH 0 0 0
>eth0
>192.18.0.0 * 255.255.255.0 U 0 0 0
>eth0
>192.168.0.0 * 255.255.255.0 U 0 0 0
>eth1
>localnet * 255.0.0.0 U 0 0
>0 lo
>
>I've enabled
>net.ipv4.icmp_echo_ignore_all = 0 in /etc/sysctl.conf
>
>Help!!!!!!
>
>Thanks in advance
--
-------------------------------------------"Never tell me the odds!"--------
Ray Olszewski -- Han Solo
Palo Alto, California, USA [EMAIL PROTECTED]
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